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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K21-237-4
Magnum 280H Hydraulic Flat Tappet Camshaft & Complete Kit Lift .480"/.480" Duration 280°/280° RPM Range 2500-5800
$69095
Ships on Oct 29, 2026
Lowest Price GuaranteeCurrently Unavailable
This product is currently not available. Please call customer service for assistance at 1-800-345-4545.
Chrysler 383-440ci 1959-1980
- Magnum 280H Hydraulic Flat Tappet Camshaft & Complete Kit
Lift .480"/.480"
Duration 280°/280°
RPM Range 2500-5800
Hydraulic-For 9:1 to 10:1 compression. 383 needs 2500 stall. 440 needs 2000 stall. Use 700-800 CFM carburetor headers 3.91+ gear.
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
For 9:1-10:1 compression. 383 needs 2500 stall. 440 needs 2000+ stall. Use 700-800 CFM carburetor, headers, 3.91+ gears.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.3
Package Width10.6
Package Length25.3
Weight25.58 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic flat tappet
Grind NumberCRB 280H-10
Exh. Duration Advertised (Deg)280
Locks IncludedYes
Engine Make/SizeMopar 383-440
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)230
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,500-5,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)280
Lobe Separation (Deg)110
Rpm Range2500-5800
Lifter StyleHydraulic flat tappet
Advertised Duration280 int./280 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.48
Valve Springs IncludedYes
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.480 exh.
Camshaft Gear Attachment1-bolt
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.48 in (12.192 mm)
Advertised Intake Duration280
Outside Diameter Of Outer Spring1.525 in (38.7 mm)
Intake Duration At 050 Inch Lift231
Exhaust Duration At 050 Inch Lift231
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration280
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift231 int./231 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK21-237-4
Package Qty1
Package TypeEA
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